A Chinese man walks into a bar..

and yells to the bartender in a heavy accent, 'HEY NIGGER, GET ME A BEER!'

The black bartender is visibly upset but maintains his composure and calmly tells the Chinese man that he doesn't appreciate his language, and that it is unacceptable in America. The Chinese man nods apparently in agreement, receives his beer, and takes a long swig.

After downing it he slams the empty mug on the bar and he yells over to the bartender, 'BOY, YOU BETTER GET YOUR NIGGER ASS OVER HERE AND SERVE ME ANOTHER BEER!' Now all the other patrons are looking at this drunk Chinese guy so the bartender tells him to better keep it cool, which he does for about half an hour.

Sure enough, the drunk-as-balls Chinese man soon yells over to the bartender, 'NIGGER GET ME ANOTHER BEER BEFORE I LYNCH YOU!'

The bartender, head in his hands, finally challenges the Chinese guy, 'Look, you don't know anything about racism here in America. How about we switch places so you could see how it really feels?'. Then the bartender sits down on a stool, and the Chinese man stumbles over behind the bar.

The bartender yells to the Chinese man, 'HEY CHINK, GET ME A BEER YOU YELLOW, SLANTY-EYED, DOG-EATING MOTHER FUCKER!'

After a short pause the Chinese man looks him straight in the eyes and deadpans, 'I'm sorry, we don't serve niggers here.'